name: Gemini Automated Issue Triage

on:
  issues:
    types: [opened, reopened]

jobs:
  triage-issue:
    timeout-minutes: 5
    permissions:
      issues: write
      contents: read
      id-token: write
    concurrency:
      group: ${{ github.workflow }}-${{ github.event.issue.number }}
      cancel-in-progress: true
    runs-on: ubuntu-latest
    steps:
      - name: Generate GitHub App Token
        id: generate_token
        uses: actions/create-github-app-token@v1
        with:
          app-id: ${{ secrets.APP_ID }}
          private-key: ${{ secrets.PRIVATE_KEY }}

      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ steps.generate_token.outputs.token }}

      - name: Install dependencies
        run: npm install

      - name: Run Gemini Issue Triage
        uses: google-gemini/gemini-cli-action@1efc0bac9e0b2da6c6cab95df513324d8dfc2a79
        env:
          GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
          ISSUE_TITLE: ${{ github.event.issue.title }}
          ISSUE_BODY: ${{ github.event.issue.body }}
          ISSUE_NUMBER: ${{ github.event.issue.number }}
          REPOSITORY: ${{ github.repository }}
        with:
          version: main
          GEMINI_API_KEY: ${{ secrets.GEMINI_API_KEY }}
          OTLP_GCP_WIF_PROVIDER: ${{ secrets.OTLP_GCP_WIF_PROVIDER }}
          OTLP_GCP_SERVICE_ACCOUNT: ${{ secrets.OTLP_GCP_SERVICE_ACCOUNT }}
          OTLP_GOOGLE_CLOUD_PROJECT: ${{ secrets.OTLP_GOOGLE_CLOUD_PROJECT }}
          settings_json: |
            {
              "coreTools": [
                "run_shell_command(gh label list)",
                "run_shell_command(gh issue edit)",
                "run_shell_command(gh issue list)"
              ],
            }
          prompt: |
            You are an issue triage assistant for GitHub issues.
            Your task is to analyze the issue and apply appropriate labels from the repository's list of available labels.

            **IMPORTANT: Your only action should be to apply labels. Do not post any comments or modify any code.**

            **Triage Workflow:**

            1. **Fetch Available Labels:**
               Execute: `gh label list`

            2. **Get Issue Information:**
               The issue details are available in environment variables:
               - Repository: $REPOSITORY
               - Issue Number: $ISSUE_NUMBER
               - Issue Title: $ISSUE_TITLE
               - Issue Body: $ISSUE_BODY

            3. **Analyze and Apply Labels:**
               Based on the issue title and body, determine appropriate labels and apply them using:
               `gh issue edit $ISSUE_NUMBER --add-label "label1,label2"`

            **Guidelines:**
            - Only use labels that exist in the repository
            - Do not add comments to the issue
            - Common label patterns: kind/bug, kind/enhancement, kind/documentation, area/*, priority/*